AT+i Programmer's Manual - SE Spezial-Electronic AG

33.3.6 +iTTO — TCP Timeout
Syntax: AT+iTTO=n
Nonvolatile Parameter Database
Sets the number of seconds iChip allots an Internet
transaction to complete before returning the timeout error.
Parameters: n=0..3600 seconds
Command
Options:
The TTO parameter defines the timeout constant for
Internet transactions. iChip will return with a timeout error
for any TCP/UDP/IP transaction that didn‘t complete
properly within n±10%. Timeout measurement is defined
between receipt of an AT+i command and an iChip
response to the host.
In dial-up environments, timeout measurement begins only
after establishing a PPP connection. Furthermore, an
additional 10-15 seconds may be required to allow the
iChip to disconnect the modem.
n=0 is a special case where internal timeout constants will
be used.
Default: 0 (use iChip‘s factory default timeout values)
Result
Code:
I/OK If n is within limits
I/ERROR Otherwise
AT+iTTO~n Temporarily sets the Internet transaction timeout value for
one session. The permanent value will be restored after
completing the next session, both if the session was
successful or not.
AT+iTTO? Reports the current Internet transaction timeout used. The
reply is followed by I/OK.
AT+iTTO=? Returns the message ―0-3600‖ followed by I/OK.